[Clas12_verystrange] PAC slides

[Lei Guo]

I have udpated my slides, after taking into account the comments I got  
from the dry run. I also updated some of the plots. In particular, the  
Xi-(18220) spectra (from missing mass of the K+K+ system) with pythia  
background which Michael gave me, added to the signal I got from  
Johann. The background from the simulation wasn't exactly smooth due  
to the limited statisics, so I fitted it with a gaussian function (I  
also tried exponential), and created a smooth background.
I also added a slides to address the full-field issues, as well as a  
slide to address the energy dependency of our measurements.

The slides are under svn, called VeryStrange_PAC.ppt (or .pdf). They  
are also on the webpage of www.jlab.org/Hall-B/secure/g12/lguo/ with  
the same file names.

Please send me your comments and feel free to edit it and commit back  
to svn.

The deadline for the slides submission is 5pm (jalb time) on Tuesday.  
I will submit it on 4pm. So it is best that I can receive your  
comments a couple of hours before 4pm.

Thanks a lot and cheers!

Lei